baber/WOPTO huggingface dataset:
Patent CA-2225639-A1 (CA)
Title: Polymerization process using separated flow
Inventor: UESUGI SHUNYOU
IPC: B01J19/24
Filed: 1997-12-23
Abstract: Disclosed is a polymerization process comprising feeding a monomer as a raw material, a polymerization catalyst, and optionally, an inert medium to a tubular reactor in a pressurized state; permitting a part of the raw material monomer and the inert medium fed to the reactor to form a gas phase and the remainder to form a liquid phase, so that both of the gas phase comprising the raw material monomer and/or the inert medium and the liquid phase comprising the raw material monomer and/or the inert medium are present in the reactor, wherein said liquid phase may contain a resulting polymer as a solid, and so that a gas-liquid separated flow or a gas-liquid-solid separated flow has the gas phase that is continuous in the direction of flow is formed in the reactor; and polymerizing the raw material monomer while carrying the liquid phase by the gas phase flow, wherein the ratio of a volume flow rate of the liquid phase to a volume flow rate of the gas phase at the outlet of the reactor is 0.00001 to 100,000.  According to the polymerization process, polymerization can be accomplished with excellent thermal efficiency and small power energy, and besides various polymers almost free from restrictions on their properties such as viscosities and melting points can be produced.
Patent CA-2227247-A1 (CA)
Title: Broadband flat gain optical amplifier
Inventor: ZHOU JIANHUI
IPC: H04B10/29
Filed: 1998-01-19
Abstract: An optical amplifier that receives an optical signal at an input of the optical amplifier is arranged so that it amplifies the signal and then adjusts the level of the amplified input signal to a predetermined level. The optical amplifier, which includes a filter to substantially decrease the wavelength dependence of the optical amplifier, then amplifies the adjusted signal and supplies the resulting signal to an output.
Patent CA-2229854-A1 (CA)
Inventor: BRUNNER HELMUT
IPC: H04Q11/04
Filed: 1998-03-20
Abstract: Network terminations are made available to a customer and installed by a network operator of a digital communications network. The customer is responsible for the supply of power to the network termination.       In the event of a power failure, a network termination (NT) of a digital communications network sends an error message (FM) to the customer who is responsible for correcting the power failure. The error message (FM) is sent in the payload of the digital message signals. The network termination (NT) includes a power supply (USV) which in the event of a power failure can sustain output for a predetermined period of time, in which the error can be signaled. To signal the error, the payload may be overwritten with a predetermined bit pattern (BM).
Patent CA-2230231-A1 (CA)
Title: Apparatus for removing shared waves
Inventor: UCHIDA YOSHINORI
IPC: H04J13/00
Filed: 1996-11-29
Abstract: After amplification of a predetermined frequency component fo+nfd of an intermediate frequency signal extracted by a mixer (44), a shared wave signal thereof is demodulated and modulated, thereby reproducing TDMA serving as a shared wave signal. Further, a subtracter (51) subtracts the TDMA serving as the shared wave signal from the intermediate frequency signal to extract CDMA#1 signal serving as a desired wave signal.
Patent CA-2231642-A1 (CA)
Inventor: MORROW ALAN J
IPC: H04B10/291
Filed: 1997-07-29
Abstract: A device for adding and/or dropping a signal to a transmission line. First (34) and second (36) optical circulators are connected by at least one switchable grating (32), whereby a grating reflector may be switched into or out of the connecting path between the two circulators. A plurality of optical signals, each centered about a different wavelength, is coupled to a first port (1) of the first circulator; these signals appear at the second port (2) thereof. If a grating reflector capable of reflecting is switched into the circuit, the signal centered about propagates from the second port (2) of the first circulator (34) and reflects from the grating reflector back into the second port (2) and out of the third port (3). The remainder of the input signals that are not reflected by the grating reflectors propagate into the first port (1) and from the second circulator (36) as an output thereof. Also, a signal at wavelength input to the third port (3) of the second circulator (36) propagates from the first port (1) to the grating reflector where it reflects back to the second circulator (36) and appears at the second port (2) as an output thereof.
Patent CA-2232369-A1 (CA)
Title: Combined slot machine and racing game
Inventor: SEELIG JERALD
IPC: A63F9/14
Filed: 1996-09-19
Abstract: The gaming system of the present invention includes one or more slot machines (10, 110) associated with a racing display (20, 120) wherein the racing elements (22, 122) are not racing against each other. Rather, a clock (24, 124) is included and each racing element is racing against the clock, independently of the other racing elements. The racing display (20) may be built directly into the slot machine so that the slot player can easily see the progress of his horse (22) or other racing element. Alternatively, a large racing display (120) may be utilized that displays a plurality of horses or other racing elements (122) but wherein each horse is racing against a different clock (124) rather than against each other. Even further, Win, Place and Show positions are located adjacent the finish line, and the slot player whose horse (22, 122) reaches either of these positions is awarded a prize depending on the position reached before the clock (24, 124) has timed out.
Patent CA-2232887-A1 (CA)
Inventor: VIKIO PENTTI A
IPC: D21D5/02
Filed: 1998-03-24
Abstract: Rejects from a conventional first set of cleaners from a system feeding recycled cellulosic fiber slurry to a paper machine or rejects from the paper machine approach system cleaners are fractionated to produce a first, fine fraction, stream and a second, coarse fraction, stream containing most of the fiber and larger solids. The second stream is acted upon by a disperser, deflaker, or like mechanical agitating device, to disrupt the fiber flocs and reduce the size of solids to produce a third stream containing few or no fiber flocs and no large particles. The third stream may be diluted and cleaned in a second set of cleaners, and then is returned to the first set of cleaners (e.g. to the inlet of the first stage or between the first and second stages). Ink, and other fine undesirable particles may be removed from the first stream via flotation or cleaning, and the cleaned stream may also be returned to the first set of cleaners if desired.
Patent CA-2237099-A1 (CA)
Title: Sulfonylaminocarboxylic acids
Inventor: THORWART WERNER
IPC: C07D233/54
Filed: 1998-05-07
Abstract: Compounds of the formula I                         (see fig. I) are suitable for the production of pharmaceuticals for the prophylaxis and therapy of disorders in the course of which an increased activity of matrix-degrading metalloproteinases in involved.
Patent CA-2239099-A1 (CA)
Title: Methods for generating polynucleotides having desired characteristics by iterative selection and recombination
Inventor: CRAMERI ANDREAS
IPC: C07K16/00
Filed: 1996-12-02
Abstract: A method for DNA reassembly after random fragmentation, and its application to mutagenesis of nucleic acid sequences by in vitro or in vivo recombination is described. In particular, a method for the production of nucleic acid fragments or polynucleotides encoding mutant proteins is described. The present invention also relates to a method of repeated cycles of mutagenesis, shuffling and selection which allow for the directed molecular evolution in vitro or in vivo of proteins.
Patent CA-2244087-A1 (CA)
Inventor: SZYMANSKI THOMAS
IPC: C07D301/08
Filed: 1997-04-17
Abstract: A process for the production of an alumina based catalyst carrier in which a fired carrier body is impregnated with a source of titania in a liquid medium that upon heating yields titania and then calcined to generate titania uniformly dispersed in the carrier in an amount up to 10 % by weight.
Patent CA-2249356-A1 (CA)
Inventor: POOLE GLENN C
IPC: G06F9/38
Filed: 1997-03-04
Abstract: A method for operating a Reduced Instruction Set Computer, RISC, processor that executes normal RISC instruction and special RISC instructions.  The method comprises the steps of controlling the RISC processor to perform a single operation (212), using a single functional unit of the RISC processor, in response to each normal RISC instruction. The method also comprises the step of controlling the RISC processor to perform multiple operations (212), using multiple functional units of the RISC processor in parallel, in response to each special RISC instruction. The method also comprises the step of controlling the RISC processor to repeatedly perform special operations wherein, after a first operation, each subsequent operation depends on a result of a previous operation.
Patent CA-2249847-A1 (CA)
Title: Screening apparatus for sewage
Inventor: FROMMANN CHRISTIAN
IPC: E03F5/14
Filed: 1998-10-08
Abstract: A screening apparatus (1) for sewage (13) including liquid (4) and debris and flowing in an oncoming tube (23) includes a conveyor assembly (6) and a separation area (2). The conveyor assembly (6) has a tube-like housing (7), an axle (8) driven by a motor, and a screw (9) provided on the axle (8). The conveyor assembly (6) with its axis (10) is arranged substantially vertical to convey the debris in a substantially upward direction. The separation area (2) of cylindrical shape to deposit the debris has an axis (5), an inner surface (41), a circumference, and openings (3) located about the circumference. The separation area (2) with its axis (5) is arranged in alignment with the substantially vertically arranged axis (10) of the conveyor assembly (6). The separation area (2) is connected to the housing (7) of the conveyor assembly (6), and includes an opening (17) serving as an inlet (40) for the sewage (13) into the interior of the separation area (2).
Patent CA-2250222-A1 (CA)
Title: Sensitization of her-2/neu overexpressing cancer cells to chemotherapy
Inventor: HUNG MIEN-CHIE
IPC: C07K14/075
Filed: 1997-03-19
Abstract: The present invention relates to methods for the inhibition, of the gene product of the neu oncogene, p185neu tyrosine kinase. Overexpression of the neu oncogene leads to chemoresistance. The methods disclosed involve the novel use of E1A and/or LT in combination with chemotherapeutic drugs to treat carcinoma. Furthermore, E1A surprisingly potentiates the antineoplastic effects of the chemotherapeutic agents. The inventors propose that E1A  sensitizes cancer cells such that they become amenable to treatment by chemotherapeutic drugs.
Patent CA-2251648-A1 (CA)
Inventor: BURCHILL MICHAEL T
IPC: H01M50/426
Filed: 1998-02-27
Abstract: New and novel copolymers of vinylidene fluoride and hexafluoropropylene containing up to about 24 % by weight hexafluoropropylene having improved solution clarity and fluidity, longer gel times and lower extractables than prior art vinylidine fluoride-hexafluoropropylene copolymers of comparable HFP  content whose syntheses are disclosed in sufficient detail to duplicate, the novel compositions of matter and articles of manufacture containing such copolymers, of the compositions of matter containing such copolymers and of the articles of manufacture containing such copolymers are disclosed. Also disclosed are novel battery constructions based on the novel copolymers of vinylidene fluoride/hexafluoropropylene copolymers of the invention, on vinylidene fluoride homopolymers having a bimodal molecular weight distribution and on vinylidene fluoride/chlorotrifluoroethylene copolymers having a substantially homogeneous monomer distribution.
Patent CA-2253503-A1 (CA)
Inventor: RUSSELL FREDERICK BRIAN
IPC: E21B17/10
Filed: 1997-05-23
Abstract: A drill string stabiliser (10) for bore hole drilling apparatus, which comprises a plurality of fixed spiral blade arms (11) provided with replaceable wear elements (12).
Patent CA-2254177-A1 (CA)
Title: Method and apparatus for producing cut fresh curd blocks
Inventor: RIETVELD ARNOUT JAN WILLEM
IPC: A01J25/16
Filed: 1998-11-17
Abstract: A method and apparatus for producing cut fresh curd blocks, wherein curd blocks are formed using at least one block former, are subsequently packaged and are discharged for further handling, wherein a curd block after leaving a block former is placed in a conveying holder, the conveying holder is brought to a pressing station, and the curd block in the conveying holder is briefly pressed and subsequently transported further.
Patent CA-2254491-A1 (CA)
Inventor: LIAO SHUN-AN
IPC: H02H9/04
Filed: 1998-11-25
Abstract: The display type surge suppressor is composed of a high efficiency surge suppression circuit and a digital display, wherein it utilizes the arc occurring characteristic of passing surge and transforms it into an instant light, thereby to concretize the abstract behavior of the surge suppression, which allows the user to judge the surge entering routes and modes while the digital display can record the numbers of entering surge, i.e. to show the surge entering status in numerical figures. Thereof the surge suppressor is comprised of several surge-protective devices such as metal oxide varistors (MOV), gas tube arresters, polyswitches, common mode chokes, Transzorbs, etc. and the digital display. The display type surge suppressor has a multi-layers type circuit which completely absorbs the surge energy with high efficiency, multiple use, automatic recovery and rapid surge suppression functions; in addition, the digital display also reads in the power source terminal voltage value during the switch changeover. The display type surge suppressor can be used alone through plugging in the AC power source outlet to suppress the various interference surge in the power distribution circuits, it also can be series combined with the inlet or outlet terminals of electrical appliances for suppressing the various interference surge entering the electrical appliances, thereby to ensure their safety.
Patent CA-2255156-A1 (CA)
Title: Formation of blocked, isocyanurate group-containing polyisocyanates from partially blocked isocyanates
Inventor: JEFFRIES MICHAEL K
IPC: C08G18/80
Filed: 1998-12-04
Abstract: The present invention relates to a process for the preparation of blocked polyisocyanates containing isocyanurate groups by a) reacting 20 to 80 equiv.% of the isocyanate groups of an organic diisocyanate with a pyrazole or triazole blocking agent, b) trimerizing the remaining unblocked isocyanate groups in the presence of a basic trimerization catalyst until the isocyanate content is less than 2.5% by weight, based on the weight of the blocked polyisocyanate and c) optionally blocking any remaining isocyanate groups with a blocking agent for isocyanate groups. The present invention also relates to the use of these blocked polyisocyanates for the production of polyisocyanate addition products.
Patent CA-2257126-A1 (CA)
Inventor: STEWART FRANK M
IPC: C22B3/02
Filed: 1997-06-04
Abstract: Procédé et appareil d'oxydation anaérobie de combinaison de sulfures métalliques dans les minerais et les concentrés. Selon la présente invention, lesdits sulfures métalliques sont oxydés dans un réacteur (101) en environnement anaérobie ou anoxique au moyen d'ions métalliques oxydés, tels que les ions ferreux (Fe?+3¿) à titre d'agent oxydant. L'oxydation anaérobique du soufre élémentaire, produit par l'oxydation d'un sulfure métallique, fait l'objet d'une catalyse biologique par des bactéries oxydantes, telles les Thiobacillus ferrooxidans, Thiobacillus thiooxidans ou les espèces Sulfobus. La production biologique des ions métalliques oxydés s'effectue au moyen d'une ferrobactérie dans un autre réacteur (201) en environnement aérobie. Selon un mode de réalisation préféré, le réacteur anaérobie est un réacteur de type ascendant (405) à écoulement contre-courant possédant une couche fluidifiée de minerais ou de particules concentrées et le réacteur aérobie (403) est un réacteur à écoulement piston (423).
Patent CA-2260257-A1 (CA)
Title: Adhesive agent and use of such agent
Inventor: NIELSEN INGER MANN
IPC: A61L15/58
Filed: 1997-07-02
Abstract: An adhesive agent for application to human or animal skin, preferably for use in connection with ostomy or incontinence appliances, comprises a pressure sensitive adhesive and optionally additives conventionally used in adhesives of this kind and parts of or extracts from Aloe vera. Such adhesive prevents or alleviates skin problems.
Patent CA-2260314-A1 (CA)
Title: Optical signal translator unit
Inventor: KUNZ JOSEPH P
IPC: H04B10/213
Filed: 1999-01-25
Abstract: The invention is directed to an optical node, e.g., a so-called add/drop site, that receives an optical carrier signal formed from a plurality of component optical signals of respective wavelengths and a plurality of different identification signals which identify respective ones of the wavelengths. As is typically the case, the node includes a demultiplexer that demultiplexes the optical carrier signal and outputs the demultiplexed component optical signals to respective optical paths. Disadvantageously, each of the demultiplexed optical component signals includes all of the identification signals as a result of such demultiplexing. However, we dispose an optical translator unit in at least one of the optical paths to remove all of the identification signals from the one component optical signals and also reset the power level of that signal. A transmitter in the translator unit outputs the latter signal as an optical signal in which the wavelength of the outputted optical signal may be changed on an optional basis to a wavelength that is different from the wavelength of the one component optical signal.
Patent CA-2260976-A1 (CA)
Inventor: AMUNDSEN KETIL
IPC: C22B26/22
Filed: 1998-06-19
Abstract: A process for producing anhydrous magnesium chloride comprising steps of selective calcination of Mg-containing minerals, selective leaching of magnesium by using as a leaching solvent ammonium chloride dissolved in a substantially waterfree polar organic solvent. Insoluble impurities are separated, magnesium chloride hexammoniate is precipitated and anhydrous magnesium chloride and ammonia are formed by thermal decomposition of the hexammoniate crystals.
Patent CA-2263755-A1 (CA)
Title: Radiation curable fluorescent printing inks
Inventor: LIKAVEC WAYNE R
IPC: C09D11/00
Filed: 1997-08-28
Abstract: The present invention provides fluorescent inks and ink concentrates which are curable by exposure to ultraviolet or electron beam radiation. The ink composition is comprised of a) 20-90 % of an oligomer selected from (i) a formaldehyde oligomer, (ii) a cyclic-aliphatic oligomer, and (iii) mixtures thereof, b) 0.1-15 % of fluorescent dye, c) 10-80 % of photopolymerizable vehicle, and d) 0-20 % of photoinitiator.
Patent CA-2265222-A1 (CA)
Inventor: LUXFORD TIMOTHY
IPC: B63B17/02
Filed: 1999-03-11
Abstract: A float tube canopy includes a back panel having a top and a bottom with straps for securing the canopy to the back of a float tube so the back panel extends upwardly therefrom. There is a top panel having a front and a back connected to the top of the back panel. The top panel is cantilevered from the back panel and spaced-apart from the float tube. Each of the panels may include a frame and a fabric cover stretched thereon. The panels may be collapsible so the canopy can be selectively folded or erected.
Patent CA-2265691-A1 (CA)
Title: Blue colored glass composition
Inventor: HIGBY PAIGE L
IPC: C03C4/08
Filed: 1998-07-24
Abstract: A soda-lime-silica glass having, at a thickness in the range of 3mm to 10mm, a visible light transmittance of 35 % to 75 %, a total solar radiation transmittance in the range of 20 % to 60 %, an ultraviolet radiation transmission less than 55 %, and a blue color defined by the "CIELAB" system of L = 65 to 90, a* = -15 to -4, and b* = -15 to -2. The soda-lime-silica glass composition includes the essential ingredients of about 0.5 % to about 0.9 % weight percent total iron (as Fe2O3), about 50 ppm to 100 ppm CoO, and about 0.1 to about 2.0 weight percent TiO2, with a ferrous iron to total iron ratio of about 20 % to about 40 %.
Patent CA-2267269-A1 (CA)
Title: High density perforating gun system
Inventor: WESSON DAVID S
IPC: E21B43/117
Filed: 1997-09-03
Abstract: A high density perforating gun having a carrier housing tube and an interior charge holder tube through which are mounted zinc alloy shaped charges in a phased relationship between about 135 and 145 degrees. The 135 to 145 degree phased relationship provides for an 18 shot per foot perforating gun system.  The shaped charges of selected length are inserted into the carrier housing tube and held in place by fastener rings fitted to fastener ring slots. The nose ends of the shaped charges are fitted with ears to receive a detonating cord. This positions the primer cord in tension and generally coaxially with the carrier housing tube to prevent charge interference and assure sequential detonation.
Patent CA-2267703-A1 (CA)
Inventor: WARREN CANDY
IPC: A63H33/38
Filed: 1999-03-31
Abstract: A book-toy combination, comprising a front cover, a back cover, and a plurality of pages therebetween, the front cover, back cover and plurality of pages being bound along one side thereof; an elongated member coupled to at least one of the front cover, the back cover, and at least one of the plurality of pages, the elongated member extending away from a periphery of the front cover, the back cover, and the at least one of the plurality of pages; and at least one element sliding along the elongated member.
Patent CA-2269499-A1 (CA)
Title: Energy meter with power quality monitoring and diagnostic systems
Inventor: HEMMINGER RODNEY C
IPC: G06F19/00
Filed: 1997-10-16
Abstract: An electronic meter (10) which automatically detects the service type and voltage to which the meter (10) is installed and which either automatically continues its own programming to the detected service is disclosed. An electronic energy meter (10) that permits the addition of new measurements or testing capabilities without requiring factory modifications to effect such functionality changes is also disclosed. The meter (10) includes firmware which measures the characteristics of electrical energy supplied to the meter and which generates characteristic signals reflective of the measured characteirstics of the electrical energy. A processor (16) is connected to receive and process the characteristic signals. The processing of the characteristic signals includes selecting and manipulating certain of the characteristic signals and generating characteristic information in response to the selection and generating additional characteristic information in response to the manipulation. It is preferred for the meter (10) to include a memory (35) having reference information stored therein. In such an embodiment, the manipulation of characteristic signals includes retrieving certain of the reference information and generating the characteristic information in response to the selected signals and the reference information.
Patent CA-2269675-A1 (CA)
Inventor: YOUNG ROSA
IPC: H01M4/52
Filed: 1996-11-07
Abstract: A nickel hydroxide positive electrode active material which can be made by an ultrasonic precipitation method. The nickel hydroxide active material is characterized by the ability to reversibly cycle between the beta and gamma nickel hydroxide crystalline phases during electrochemical charge and discharge. The material may also be characterized by a high degree of local ordering of the hydroxyl ions.